AR-3D projection device for intelligent information fields in myocardial infarction emergencies

Abstract

An AR-3D projection device for intelligent information fields in myocardial infarction emergencies, comprising a base plate (9) and a projection housing (1) located above the base plate (9), characterized in that the top of the base plate (9) is rigidly connected to four telescopic supports (10), wherein the tops of the four telescopic supports (10) are all rigidly connected to the bottom of the projection housing (1); the outer wall of each telescopic support (10) is encased with a spring (11), wherein the bottom of the spring (11) is rigidly connected to the top of the base plate (9) and the top of the spring (11) is rigidly connected to the bottom of the projection housing (1); and the projection housing (1) forms an elastic buffer structure above the base plate (9) via the springs (11) and the telescopic supports (10).

Description

Technical area

[0001] The present utility model relates to the technical field of medical emergency rescue equipment and in particular to a three-dimensional (3D) projection device based on Augmented Reality (AR) for intelligent information fields in myocardial infarction emergencies. State of the art

[0002] Acute myocardial infarction (AMI) is among the most frequent emergencies and serious illnesses in cardiology. The key to treating AMI lies in the principle "time is myocardium, time is life." In modern emergency medical services, increasingly intelligent on-site aids are being used to enable rapid and precise diagnosis by physicians. These include, in particular, 3D projection devices based on AR technology. Such devices can vividly display the patient's anatomical cardiac structure, the position of vascular occlusions, and real-time vital signs in the form of 3D holograms, thus significantly improving diagnostic efficiency and communication between physicians and patients.

[0003] However, most existing AR projection devices are designed for the relatively stationary environment of doctors' offices and hospital rooms. When used in rescue situations involving strong vibrations and jolts, such as in ambulances, rescue helicopters, or on mobile stretchers, they reveal significant design flaws. The uneven road surfaces encountered during transport cause continuous mechanical vibrations. If these vibrations are transmitted directly to the device's interior, they can lead to displacement of the precise optical lens groups, loss of focus, and even loosening of the solder joints of internal electronic components. All of this permanently impairs image quality and the device's reliability. Furthermore, existing devices feature a conventional data port design.At the scene of an emergency, where every second counts, medical personnel often have to waste valuable time precisely aligning data connections. Furthermore, rushed operation poses a high risk of damaging the device through improper plugging and unplugging. This directly contradicts the requirement for an "ultra-fast response" during rescue operations.

[0004] For this reason, the present utility model proposes an AR-3D projection device for intelligent information fields in myocardial infarction emergencies to overcome the shortcomings of the prior art, such as low vibration resistance and low connection efficiency. Content of the utility model

[0005] Against this background, prior art AR projection devices used for emergency response in mobile transport environments exhibit two main shortcomings: insufficient vibration damping, leading to damage to precision parts and unstable imaging, and cumbersome and difficult-to-align data connections that do not meet the requirements for an ultra-fast emergency response. The present utility model aims to provide a structurally improved AR 3D projection device for intelligent information fields in myocardial infarction emergencies that effectively solves these problems.

[0006] The present utility model provides an AR-3D projection device for intelligent information fields in myocardial infarction emergencies, comprising a base plate and a projection housing located above the base plate, as well as telescopic supports and springs connected between the base plate and the projection housing.

[0007] The top of the base plate is rigidly connected to four telescopic supports, the tops of which are all rigidly connected to the underside of the projection housing. The outer wall of each telescopic support is encased in a spring, the underside of which is rigidly connected to the top of the base plate and the top of which is rigidly connected to the underside of the projection housing.

[0008] Furthermore, the projection housing, via the springs and telescopic supports above the base plate, forms an elastic buffer structure. The telescopic supports provide vertical guidance between the base plate and the projection housing, and the springs create an elastic connection, thus establishing a bidirectional guidance and damping system. Preferably, the outer wall of the front of the projection housing is permanently connected to a control screen. The side wall of the projection housing has a through-hole. A projection lens is permanently installed in this through-hole, and the control screen is designed to guide the projection lens for projection. This design achieves an integrated combination of interaction and projection functions, facilitating visual operation for medical personnel.

[0009] Preferably, the inner wall of one side of the projection housing is provided with two positioning holes. The device further comprises a connector, wherein the outer wall of the connector is rigidly connected to two positioning pins, the connector is slidably mounted in the projection housing, and the two positioning pins are each slidably inserted into the two positioning holes. This mechanical guidance ensures a fast and accurate data connection. Preferably, the side wall of the projection housing is provided with a receptacle for inserting the connector. The positioning holes are located on the inner wall of the receptacle, and the connector establishes the data connection with the projection housing through the interaction of the positioning pins and the positioning holes. The receptacle provides physical containment and further protects the stability of the connection.Preferably, the outer wall of one side of the projection housing is fixedly connected to a mounting block, with a spotlight detachably mounted on the mounting block. This externally mounted configuration fully utilizes the available space and provides a convenient backup light source for the rescue site. Preferably, the top of the mounting block is provided with a locking groove. The spotlight is locked into this groove. The spotlight is designed to be removed from the mounting block to provide mobile lighting. This eliminates the limitation of the lighting angle and allows it to respond flexibly to various complex rescue scenarios. Preferably, each telescopic support includes a guide cylinder mounted on the base plate and a support rod slidably mounted within the guide cylinder, with the upper end of the support rod being fixedly connected to the projection housing.This split structure ensures smooth telescopic movement and prevents the occurrence of blockage damage.

[0010] Preferably, the four telescopic supports are arranged in a rectangular pattern. The springs are in a compressed or natural extension state to absorb external forces transmitted to the projection housing. The rectangular arrangement provides optimal mechanical support stability and prevents the device from tipping over.

[0011] Preferably, the projection housing has an overall trapezoidal structure. The control screen is recessed into the inclined surface of the front of the projection housing. The trapezoidal structure lowers the center of gravity, and the inclined control surface is ergonomically designed and facilitates operation from a top-down viewing angle.

[0012] The present utility model has the following advantageous effects: 1. The present utility model solves the prior art problem of precision optical components of rescue projection devices being easily damaged by vibrations in shaking environments such as ambulance travel or transport at the scene of an incident, leading to image wobble or even device failure, by arranging a bidirectional guide and damping structure consisting of telescopic supports and springs between the projection housing and the base plate. This achieves the technical effect of effectively absorbing external shock energy, significantly reducing the vibration amplitude transmitted to internal precision components, ensuring the operational stability of the device in mobile rescue scenarios, and extending its service life. 2. The present utility model solves the prior art problem of difficult alignment of data connections, low connection efficiency, and easy damage to connections due to incorrect operation, by providing a guide structure with cooperating positioning pins and positioning holes at the connection point between the plug and the projection housing. This problem arises when medical personnel at the scene of an emergency find themselves in a time-critical and stressful situation. The technical effect achieved is to enable quick and precise blind insertion of the plug, improve preparation efficiency in emergencies, increase mechanical stability after connection, and prevent unintentional disconnection. 3. The present utility model resolves the conflicting problem of the prior art by arranging a receiving block with a locking groove on the side of the projection housing in combination with a detachable spotlight. This conflict arises because pure AR projection cannot take into account the observation of the patient's body in dark environments, or impairs the contrast of the projection in bright environments. The technical effect achieved is to provide flexible auxiliary lighting that can illuminate the affected area to support diagnosis while simultaneously preventing interference with the projection, thereby improving the accuracy and convenience of rescue operations. Description of the attached drawings Fig. Figure 1 is a perspective view of the AR-3D projection device for intelligent information fields in myocardial infarction emergencies proposed by the present utility model; Fig. Figure 2 is a structural view of the recording block of the AR-3D projection device for intelligent information fields in myocardial infarction emergencies, as proposed by the present utility model. Legend of reference symbols:

[0013] 1-Projection housing; 2-Control screen; 3-Positioning hole; 4-Plug; 5-Positioning pin; 6-Projection lens; 7-Recording block; 8-Spotlight; 9-Base plate; 10-Telescopic support; 11-Spring. Examples of implementation

[0014] The technical solution in the embodiments of this utility model is described clearly and completely below with reference to the accompanying drawings. It is understood that the described embodiments represent only a subset of the embodiments of this utility model and not all of them. Based on the embodiments of this utility model, all other embodiments that a person skilled in the art in this field could achieve without inventive step fall within the scope of protection of this utility model.

[0015] Example implementation: With reference to the Fig. 1 to Fig. 2 The embodiment of the present utility model provides an AR-3D projection device for intelligent information fields in myocardial infarction emergencies, which aims to solve the problems of the prior art that the projection devices intended for emergency use have vulnerable precision optical components due to the lack of an effective vibration damping and buffer structure during mobile transport, and that alignment when connecting data ports is difficult and connection efficiency is low, so that the requirements for time criticality in emergencies cannot be met.

[0016] As in the Fig. 1 and Fig. As shown in Figure 2, the device comprises a base plate 9 and a projection housing 1 arranged above the base plate 9. The base plate 9 serves as an installation base and force-absorbing support platform for the entire device, enabling it to rest on a shelf and absorb external impact forces. The projection housing 1 functions as a functional carrier, in which precision electronic components for data processing and optical projection are integrated. The projection housing 1 is suspended from the base plate 9 via special elastic support components, creating a damping and energy-absorbing vibration damping space between the projection housing 1 and the base plate 9. This allows the projection housing 1 to remain relatively stable even under the influence of vibrations. The connection and adjustment between the base plate 9 and the projection housing 1 are achieved by four telescopic supports 10 and four springs 11.The four telescopic supports 10 are distributed in a rectangular arrangement in the four corner areas of the upper surface of the base plate 9 in order to ensure the stability of the support for the projection housing 1 above and to prevent tipping or swaying.

[0017] A bidirectional guide and vibration damping structure is constructed between the base plate 9 and the projection housing 1, and a position-fixing guide structure is used at the data connection point. With reference to the Fig.2. The telescopic supports 10 are arranged between the base plate 9 and the projection housing 1. Each telescopic support 10 comprises a guide cylinder fixedly installed on the top of the base plate 9 and a support rod slidably inserted into the guide cylinder. The upper end of the support rod is fixedly connected to the underside of the projection housing 1. Due to the sliding connection between the guide cylinder and the support rod, displacement of the projection housing 1 relative to the base plate 9 is only permitted in the vertical direction, in order to prevent horizontal displacement. The outer wall of each telescopic support 10 is encased in a spring 11, which is in either a compressed or a state of natural extension. The lower end of the spring 11 is fixedly connected to the top of the base plate 9, and the upper end of the spring 11 is fixedly connected to the underside of the projection housing 1.When the base plate 9 is subjected to external vibration shocks, the vibrational energy is transferred to the base plate 9, causing it to move upwards and compress the springs 11. The elastic deformation of the spring 11 is used to absorb most of the shock energy. In combination with the damping and guiding function of the telescopic supports 10, the amplitude of the vibrations transmitted to the projection housing 1 is significantly reduced, thus protecting the optical projection components inside the projection housing 1.

[0018] Simultaneously, a socket for connecting external data cables is formed in the outer wall of one side of the projection housing 1. Two positioning holes 3 are formed in the deep inner wall of the socket. The device is equipped with a connector 4, the end of which, facing away from the projection housing 1, is connected to a data cable. The outer dimensions of the connector 4 match the inner dimensions of the socket, allowing the connector 4 to be slidably mounted within the socket. Two positioning pins 5 are fixed to the outer wall of the side of the connector 4 facing the projection housing 1; these pins are symmetrically distributed on both sides of the connector 4.To establish a data connection, the operator holds the connector 4 and inserts it into the socket. The positioning pins 5 on the outer wall of the connector 4 first touch the inner wall of the socket and align themselves with the positioning holes 3. As the connector 4 is inserted, the two positioning pins 5 are slidably inserted into the two positioning holes 3. This mechanical guidance between the positioning pins 5 and the positioning holes 3 not only provides protection against incorrect operation and ensures rapid insertion, allowing medical personnel to perform blind insertion even in emergencies, but also reinforces the mechanical stability of the connector 4 after connection and prevents data interruption due to pulling.

[0019] The projection housing 1 has an overall trapezoidal structure. This design, with a narrower top and wider bottom, helps to lower the device's center of gravity and further enhances its stability. The front of the projection housing 1 has an inclined surface to which a control screen 2 is permanently attached. The control screen 2 is recessed into the inclined surface, allowing for a more ergonomic operating angle and facilitating operation by medical personnel with a clear overview. A through-hole is formed in the side wall of the projection housing 1, in which a projection lens 6 is permanently installed. The projection lens 6 is optically aligned with the optical projection module inside the projection housing 1.The control screen 2 is electrically connected to the internal control circuit and is used to receive user commands and to control the projection lens 6 for projecting 3D images to the outside.

[0020] A mounting block 7 is permanently attached to the outer wall of the projection housing 1 and to the side of the projection lens 6. The mounting block 7 is located in the lower side area of ​​the projection housing 1, and a locking groove is formed on its upper surface. A spotlight 8 is locked into the locking groove by means of an interference fit or elastic locking tabs. The spotlight 8 has an integrated independent power supply or is connected to the projection housing 1 via contacts to obtain power. The spotlight 8 is designed to be detached from the mounting block 7, allowing medical personnel to handle the spotlight 8 and flexibly adjust the beam angle and position to illuminate patient body parts or work areas. After use, the spotlight 8 can be directly clicked back into the mounting block 7 for storage and securing.

[0021] The four telescopic supports 10 are arranged in a rectangular pattern between the base plate 9 and the projection housing 1 to ensure even force distribution on the projection housing 1. The springs 11 are made of a high-strength steel alloy material, the stiffness coefficient of which is matched and designed according to the weight of the projection housing 1. This allows the springs 11 to be in a slightly compressed state at rest to provide sufficient support force, while enabling them to deform rapidly under dynamic impacts to absorb energy. This effectively isolates high-frequency vibrations transmitted from the base plate 9 and protects the internal precision components from damage.

[0022] The operating principle of the embodiment of the present application is as follows: When the device is in standby or operational mode, the base plate 9 is placed on an ambulance table or a mobile stretcher platform. If the external environment (e.g., shaking during vehicle travel) causes vibrations, the vibrational energy is first transferred to the base plate 9, which then reacts with oscillations. Since the base plate 9 and the projection housing 1 are connected via telescopic supports 10 and springs 11, the upward impact of the base plate 9 compresses the springs 11, with the elastic deformation of the springs 11 absorbing the impact kinetics. Simultaneously, the inner rod of the telescopic supports 10 slides in the outer cylinder, thereby restricting horizontal displacement of the projection housing 1 and allowing only buffer movement in the vertical direction.This significantly reduces the amplitude of the vibrations transmitted to the projection housing 1, thus keeping the projection housing 1 and the internal precision components relatively stable and preventing damage to the device or flickering of the projection image due to vibrations.

[0023] To establish a data connection, the operator holds the connector 4 and aligns it with the socket on the side wall of the projection housing 1. The two positioning pins 5 on the outer wall of the connector 4 perform a crucial guiding function by precisely engaging the positioning holes 3 in the inner wall of the socket. These pins guide the connector 4 to slide smoothly and accurately into the socket, thus establishing an electrical connection without requiring repeated alignment by the operator. Once the connection is successful, the operator enters commands via the touchscreen 2 to activate the internal system. The processing unit inside the projection housing 1 processes the received myocardial infarction emergency data (e.g., 3D model of the heart, vital sign waveforms, etc.).) and projects them via the side projection lens 6 in the form of AR-3D images onto a predefined area to assist doctors in making an intuitive diagnosis.

[0024] During diagnosis using 3D projection, if the ambient lighting conditions are dark or physicians need to examine specific details of the patient's affected area more clearly, the spotlight 8, which is snapped onto the mounting block 7 on the side of the projection housing 1, can be detached. The spotlight 8 can be handheld to serve as a mobile light source for targeted illumination of specific areas, enabling precise emergency treatment in combination with the AR projection information. After use, the spotlight 8 can be clicked back into the mounting block 7 and secured.

Claims

[1] An AR-3D projection device for intelligent information fields in myocardial infarction emergencies, comprising a base plate (9) and a projection housing (1) located above the base plate (9), characterized by , that the top of the base plate (9) is rigidly connected to four telescopic supports (10), the tops of the four telescopic supports (10) all being rigidly connected to the bottom of the projection housing (1); the outer wall of each telescopic support (10) is encased with a spring (11), the bottom of the spring (11) being rigidly connected to the top of the base plate (9) and the top of the spring (11) being rigidly connected to the bottom of the projection housing (1); and the projection housing (1) forming an elastic buffer structure above the base plate (9) via the springs (11) and the telescopic supports (10). [2] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 1, characterized by , that the outer wall of the front of the projection housing (1) is firmly connected to an operating screen (2), the side wall of the projection housing (1) is provided with a through-hole, a projection lens (6) is firmly installed in the through-hole, and the operating screen (2) is designed to allow the projection lens (6) to perform the projection. [3] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 1, characterized by , that the inner wall of one side of the projection housing (1) is provided with two positioning holes (3), the device further comprises a plug (4), wherein the outer wall of the plug (4) is firmly connected to two positioning pins (5), the plug (4) is slidably mounted in the projection housing (1), and the two positioning pins (5) are each slidably inserted into the two positioning holes (3). [4] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 3, characterized by , that the side wall of the projection housing (1) is provided with a socket for inserting the plug (4), the positioning holes (3) are located on the inner wall of the socket, and the plug (4) realizes the data connection with the projection housing (1) via the interaction of the positioning pins (5) and the positioning holes (3). [5] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 1, characterized by , that the outer wall of one side of the projection housing (1) is fixedly connected to a receiving block (7), wherein a spotlight (8) is detachably arranged on the receiving block (7). [6] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 5, characterized by, that the top of the mounting block (7) is provided with a locking groove, the headlight (8) is locked into the locking groove, and the headlight (8) is designed to be removed from the mounting block (7) to provide mobile lighting. [7] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 1, characterized by , that each telescopic support (10) comprises a guide cylinder fixed to the base plate (9) and a support rod slidably mounted in the guide cylinder, the upper end of the support rod being fixedly connected to the projection housing (1). [8] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 1, characterized by, that the four telescopic supports (10) are distributed in a rectangular arrangement, and the springs (11) are in a compressed state or a state of natural extension to absorb external forces transmitted to the projection housing (1). [9] The AR-3D projection device for intelligent information fields in myocardial infarction emergencies according to claim 2, characterized by , that the projection housing (1) has an overall trapezoidal housing structure, and the control screen (2) is recessed into the inclined surface of the front of the projection housing (1).

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